diff --git a/panda/src/egg/Sources.pp b/panda/src/egg/Sources.pp
index 5fc0ba2429..fda13e439f 100644
--- a/panda/src/egg/Sources.pp
+++ b/panda/src/egg/Sources.pp
@@ -3,7 +3,6 @@
 #define OTHER_LIBS p3interrogatedb:c p3dconfig:c p3dtoolconfig:m \
                    p3dtoolutil:c p3dtoolbase:c p3dtool:m p3prc:c
 #define YACC_PREFIX eggyy
-#define LFLAGS -i
 #define USE_PACKAGES zlib
 
 #begin lib_target
diff --git a/pandatool/src/xfile/Sources.pp b/pandatool/src/xfile/Sources.pp
index fdade521f6..ad9f520325 100644
--- a/pandatool/src/xfile/Sources.pp
+++ b/pandatool/src/xfile/Sources.pp
@@ -1,5 +1,4 @@
 #define YACC_PREFIX xyy
-#define LFLAGS -i
 
 #define USE_PACKAGES zlib