diff --git a/pd/src/makefile.in b/pd/src/makefile.in
index 00cdf6e941bee2ec261895f16dd59217a52a84a6..ac7bb82370446210cb1ea78d65236f2089244b53 100644
--- a/pd/src/makefile.in
+++ b/pd/src/makefile.in
@@ -41,7 +41,7 @@ LDFLAGS = @LDFLAGS@
 LIB =  @PDLIB@
 
 WARN_CFLAGS = -Wall -W -Wstrict-prototypes \
-    -Wno-unused-parameter -Wno-parentheses -Wno-switch
+    -Wno-unused-parameter -Wno-parentheses -Wno-switch -Wno-cast-function-type
 #WARN_CFLAGS += -Werror=implicit-function-declaration
 
 ARCH_CFLAGS = -DPD