diff --git a/client/jansson/Makefile b/client/jansson/Makefile
index e608d7c04..7657e35f3 100644
--- a/client/jansson/Makefile
+++ b/client/jansson/Makefile
@@ -34,7 +34,7 @@ CLEAN = $(CMDOBJS)
 CC= gcc
 CFLAGS= -O2 -Wall -Wno-unused-variable -Wno-unused-function
 LDFLAGS= $(SYSLDFLAGS) $(libjansson_la_LDFLAGS)
-LIBS= -lm $(SYSLIBS) $(MYLIBS)
+LIBS= $(SYSLIBS) $(MYLIBS)
 DEFAULT_INCLUDES = -I.
 DEFS = -DHAVE_STDINT_H
 
diff --git a/client/tinycbor/Makefile b/client/tinycbor/Makefile
index 31fb327cb..78ef64dc0 100644
--- a/client/tinycbor/Makefile
+++ b/client/tinycbor/Makefile
@@ -16,7 +16,7 @@ CLEAN = $(CMDOBJS)
 	
 CC= gcc
 CFLAGS= -O2 -Wall -Wno-unused-variable -Wno-unused-function
-LIBS= -lm $(SYSLIBS) $(MYLIBS)
+LIBS=  $(SYSLIBS) $(MYLIBS)
 DEFAULT_INCLUDES = -I. -I..
 DEFS = -DHAVE_STDINT_H
 
diff --git a/common/mbedtls/Makefile b/common/mbedtls/Makefile
index a9a850989..2a6bca6f4 100644
--- a/common/mbedtls/Makefile
+++ b/common/mbedtls/Makefile
@@ -57,7 +57,7 @@ CLEAN = $(CMDOBJS)
 CC= gcc
 CFLAGS= -O2 -Wall -Wno-unused-variable -Wno-unused-function
 LDFLAGS= $(SYSLDFLAGS) $(mbedtls_LDFLAGS)
-LIBS= -lm $(SYSLIBS) $(MYLIBS)
+LIBS=  $(SYSLIBS) $(MYLIBS)
 DEFAULT_INCLUDES = -I. -I..
 DEFS = -DHAVE_STDINT_H