diff --git a/Makefile.common b/Makefile.common
index 67ca17f2044..b5c4c9c9dcf 100644
--- a/Makefile.common
+++ b/Makefile.common
@@ -163,7 +163,7 @@ endif
 
 #if PROJDIR is defined then we include PROJ DIR includes and libraries
 ifndef PROJ_COMPILE
-PROJ_INCLUDE = "."
+PROJ_INCLUDE = .
 else
 PROJ_INCLUDE = $(PROJ_DIR)/include
 endif 
diff --git a/Makefile.rules b/Makefile.rules
index 67ca17f2044..b5c4c9c9dcf 100644
--- a/Makefile.rules
+++ b/Makefile.rules
@@ -163,7 +163,7 @@ endif
 
 #if PROJDIR is defined then we include PROJ DIR includes and libraries
 ifndef PROJ_COMPILE
-PROJ_INCLUDE = "."
+PROJ_INCLUDE = .
 else
 PROJ_INCLUDE = $(PROJ_DIR)/include
 endif