diff --git a/armsrc/mifarecmd.c b/armsrc/mifarecmd.c
index 4bdf48bf..60a85c80 100644
--- a/armsrc/mifarecmd.c
+++ b/armsrc/mifarecmd.c
@@ -1171,7 +1171,7 @@ void MifareECardLoad(uint32_t arg0, uint32_t arg1, uint32_t arg2, uint8_t *datai
 //
 //-----------------------------------------------------------------------------
 
-bool isBlockTrailer(int blockN) {
+static bool isBlockTrailer(int blockN) {
 	if (blockN >= 0 && blockN < 128) {
 		return ((blockN & 0x03) == 0x03);
 	}
diff --git a/client/cmdhfmf.c b/client/cmdhfmf.c
index b3af9120..8e7940a7 100644
--- a/client/cmdhfmf.c
+++ b/client/cmdhfmf.c
@@ -1854,7 +1854,7 @@ int CmdHF14AMfCSetUID(const char *Cmd)
 	return 0;
 }
 
-int ParamGetCardSize(const char c) {
+static int ParamGetCardSize(const char c) {
 	int numBlocks = 16 * 4;
 	switch (c) {
 		case '0' : numBlocks = 5 * 4; break;