diff --git a/core/combo/javac.mk b/core/combo/javac.mk
index 153ab5f..4248af0 100644
--- a/core/combo/javac.mk
+++ b/core/combo/javac.mk
@@ -10,9 +10,9 @@
 #
 
 ifneq ($(LEGACY_USE_JAVA6),)
-common_flags := -target 1.5 -Xmaxerrs 9999999
+common_jdk_flags := -target 1.5 -Xmaxerrs 9999999
 else
-common_flags := -source 1.7 -target 1.7 -Xmaxerrs 9999999
+common_jdk_flags := -source 1.7 -target 1.7 -Xmaxerrs 9999999
 endif
 
 # Use the indexer wrapper to index the codebase instead of the javac compiler
@@ -25,9 +25,9 @@
 # Whatever compiler is on this system.
 ifeq ($(BUILD_OS), windows)
     COMMON_JAVAC := development/host/windows/prebuilt/javawrap.exe -J-Xmx256m \
-        $(common_flags)
+        $(common_jdk_flags)
 else
-    COMMON_JAVAC := $(JAVACC) -J-Xmx1024M $(common_flags)
+    COMMON_JAVAC := $(JAVACC) -J-Xmx1024M $(common_jdk_flags)
 endif
 
 # Eclipse.