diff --git a/Makefile.host b/Makefile.host
index 3220f7add..66f3ccce0 100644
--- a/Makefile.host
+++ b/Makefile.host
@@ -15,12 +15,7 @@ FALSE = false
 
 CFLAGS ?= -Wall -Werror -O3
 CFLAGS += $(MYDEFS) $(MYCFLAGS) $(MYINCLUDES)
-ifneq (,$(PM3_BIN_PATH))
-    CFLAGS += -DPM3_BIN_PATH=\"$(PM3_BIN_PATH)\"
-endif
-ifneq (,$(PM3_SHARE_PATH))
-    CFLAGS += -DPM3_SHARE_PATH=\"$(PM3_SHARE_PATH)\"
-endif
+PREFIX ?= /usr/local
 
 platform = $(shell uname)
 
diff --git a/client/Makefile b/client/Makefile
index ccf7d5ab8..4a2e12329 100644
--- a/client/Makefile
+++ b/client/Makefile
@@ -66,12 +66,7 @@ INCLUDES_CLIENT = -I. -I../include -I../common -Iuart $(LIBS)
 CFLAGS ?= -Wall -Werror -g -O3
 # We cannot just use CFLAGS+=... because it has impact on sub-makes if CFLAGS is defined in env:
 PM3CFLAGS = $(CFLAGS) -std=c99 -D_ISOC99_SOURCE $(INCLUDES_CLIENT)
-ifneq (,$(PM3_BIN_PATH))
-    PM3CFLAGS += -DPM3_BIN_PATH=\"$(PM3_BIN_PATH)\"
-endif
-ifneq (,$(PM3_SHARE_PATH))
-    PM3CFLAGS += -DPM3_SHARE_PATH=\"$(PM3_SHARE_PATH)\"
-endif
+PREFIX ?= /usr/local
 ifneq (,$(findstring MINGW,$(platform)))
     PM3CFLAGS += -mno-ms-bitfields -fexec-charset=cp850
 endif
diff --git a/client/fileutils.c b/client/fileutils.c
index 3c98b345a..1c0403294 100644
--- a/client/fileutils.c
+++ b/client/fileutils.c
@@ -855,9 +855,11 @@ int searchAndList(const char *pm3dir, const char *ext) {
         filelist(script_directory_path, ext, false, false);
     }
     // try pm3 dirs in pm3 installation dir (install mode)
-    {
-        char script_directory_path[strlen(PM3_SHARE_PATH) + strlen(pm3dir) + 1];
-        strcpy(script_directory_path, PM3_SHARE_PATH);
+    const char *exec_path = get_my_executable_directory();
+    if (exec_path != NULL) {
+        char script_directory_path[strlen(exec_path) + strlen(PM3_SHARE_RELPATH) + strlen(pm3dir) + 1];
+        strcpy(script_directory_path, exec_path);
+        strcat(script_directory_path, PM3_SHARE_RELPATH);
         strcat(script_directory_path, pm3dir);
         filelist(script_directory_path, ext, true, false);
     }
@@ -975,10 +977,11 @@ static int searchFinalFile(char **foundpath, const char *pm3dir, const char *sea
     }
     // try pm3 dirs in pm3 installation dir (install mode)
     {
-        char *path = calloc(strlen(PM3_SHARE_PATH) + strlen(pm3dir) + strlen(filename) + 1, sizeof(char));
+        char *path = calloc(strlen(exec_path) + strlen(PM3_SHARE_RELPATH) + strlen(pm3dir) + strlen(filename) + 1, sizeof(char));
         if (path == NULL)
             goto out;
-        strcpy(path, PM3_SHARE_PATH);
+        strcpy(path, exec_path);
+        strcat(path, PM3_SHARE_RELPATH);
         strcat(path, pm3dir);
         strcat(path, filename);
         if ((g_debugMode == 2) && (!silent)) {
diff --git a/client/scripting.c b/client/scripting.c
index 6c2dbb07c..33e7c6c42 100644
--- a/client/scripting.c
+++ b/client/scripting.c
@@ -1175,7 +1175,7 @@ int set_pm3_libraries(lua_State *L) {
     }
     char *user_path = getenv("HOME");
     if (user_path != NULL) {
-        // from the ~/.proxmark3/luascripts/ directory
+        // from the $HOME/.proxmark3/luascripts/ directory
         char scripts_path[strlen(user_path) + strlen(PM3_USER_DIRECTORY) + strlen(LUA_SCRIPTS_SUBDIR) + strlen(LUA_LIBRARIES_WILDCARD) + 1];
         strcpy(scripts_path, user_path);
         strcat(scripts_path, PM3_USER_DIRECTORY);
@@ -1183,7 +1183,7 @@ int set_pm3_libraries(lua_State *L) {
         strcat(scripts_path, LUA_LIBRARIES_WILDCARD);
         setLuaPath(L, scripts_path);
 
-        // from the ~/.proxmark3/lualib/ directory
+        // from the $HOME/.proxmark3/lualib/ directory
         char libraries_path[strlen(user_path) + strlen(PM3_USER_DIRECTORY) + strlen(LUA_LIBRARIES_SUBDIR) + strlen(LUA_LIBRARIES_WILDCARD) + 1];
         strcpy(libraries_path, user_path);
         strcat(libraries_path, PM3_USER_DIRECTORY);
@@ -1192,16 +1192,18 @@ int set_pm3_libraries(lua_State *L) {
         setLuaPath(L, libraries_path);
     }
 
-    if (strlen(PM3_SHARE_PATH) != 0 || strlen(LUA_SCRIPTS_SUBDIR) != 0 || strlen(LUA_LIBRARIES_WILDCARD) != 0) {
-        // from the /usr/local/share/proxmark3/luascripts/ directory
-        char scripts_path[strlen(PM3_SHARE_PATH) + strlen(LUA_SCRIPTS_SUBDIR) + strlen(LUA_LIBRARIES_WILDCARD) + 1];
-        strcpy(scripts_path, PM3_SHARE_PATH);
+    if (exec_path != NULL) {
+        // from the $PREFIX/share/proxmark3/luascripts/ directory
+        char scripts_path[strlen(exec_path) + strlen(PM3_SHARE_RELPATH) + strlen(LUA_SCRIPTS_SUBDIR) + strlen(LUA_LIBRARIES_WILDCARD) + 1];
+        strcpy(scripts_path, exec_path);
+        strcat(scripts_path, PM3_SHARE_RELPATH);
         strcat(scripts_path, LUA_SCRIPTS_SUBDIR);
         strcat(scripts_path, LUA_LIBRARIES_WILDCARD);
         setLuaPath(L, scripts_path);
-        // from the /usr/local/share/proxmark3/lualib/ directory
-        char libraries_path[strlen(PM3_SHARE_PATH) + strlen(LUA_LIBRARIES_SUBDIR) + strlen(LUA_LIBRARIES_WILDCARD) + 1];
-        strcpy(libraries_path, PM3_SHARE_PATH);
+        // from the $PREFIX/share/proxmark3/lualib/ directory
+        char libraries_path[strlen(exec_path) + strlen(PM3_SHARE_RELPATH) + strlen(LUA_LIBRARIES_SUBDIR) + strlen(LUA_LIBRARIES_WILDCARD) + 1];
+        strcpy(libraries_path, exec_path);
+        strcat(libraries_path, PM3_SHARE_RELPATH);
         strcat(libraries_path, LUA_LIBRARIES_SUBDIR);
         strcat(libraries_path, LUA_LIBRARIES_WILDCARD);
         setLuaPath(L, libraries_path);
diff --git a/include/common.h b/include/common.h
index c4c5d6370..bdda44aae 100644
--- a/include/common.h
+++ b/include/common.h
@@ -16,22 +16,19 @@
 #include <stddef.h>
 #include <stdbool.h>
 
-// brew prefixes are a bit weird so we've to split bin & share to be prepared:
-#ifndef PM3_BIN_PATH
-# define PM3_BIN_PATH "/usr/local/bin/"
-#endif
-#ifndef PM3_SHARE_PATH
-# define PM3_SHARE_PATH "/usr/local/share/proxmark3/"
-#endif
-// PM3_USER_DIRECTORY will be expanded as if with a "~" upfront, e.g. ~/.proxmark3/
-#define PM3_USER_DIRECTORY "/.proxmark3/"
+#define PATHSEP "/"
+// PM3 share path relative to executable when installed
+#define PM3_SHARE_RELPATH    ".." PATHSEP "share" PATHSEP "proxmark3" PATHSEP
+
+// PM3_USER_DIRECTORY will be expanded from $HOME, e.g. ~/.proxmark3/
+#define PM3_USER_DIRECTORY   PATHSEP ".proxmark3" PATHSEP
 
 // PM3 subdirectories:
-#define DICTIONARIES_SUBDIR "dictionaries/"
-#define LUA_LIBRARIES_SUBDIR "lualibs/"
-#define LUA_SCRIPTS_SUBDIR   "luascripts/"
-#define RESOURCES_SUBDIR   "resources/"
-#define TRACES_SUBDIR   "traces/"
+#define DICTIONARIES_SUBDIR  "dictionaries" PATHSEP
+#define LUA_LIBRARIES_SUBDIR "lualibs" PATHSEP
+#define LUA_SCRIPTS_SUBDIR   "luascripts" PATHSEP
+#define RESOURCES_SUBDIR     "resources" PATHSEP
+#define TRACES_SUBDIR        "traces" PATHSEP
 
 #define PACKED __attribute__((packed))