diff --git a/src/osd/sdl/sdl.mak b/src/osd/sdl/sdl.mak
index b899cb97329..707843ff88c 100644
--- a/src/osd/sdl/sdl.mak
+++ b/src/osd/sdl/sdl.mak
@@ -446,7 +446,7 @@ endif
 ifeq ($(findstring 4.7.2-2ubuntu1,$(TEST_GCC)),4.7.2-2ubuntu1)
 GCC46TST = $(shell which g++-4.6 2>/dev/null)
 ifeq '$(GCC46TST)' ''
-	$(error Ubuntu 12.10 detected.  Please install the gcc-4.6 and g++-4.6 packages)
+$(error Ubuntu 12.10 detected.  Please install the gcc-4.6 and g++-4.6 packages)
 endif
 CC = @gcc-4.6
 LD = @g++-4.6