diff --git a/aegisub/reporter/Makefile.am b/aegisub/reporter/Makefile.am
index ef5f70c9a..b92c044f7 100644
--- a/aegisub/reporter/Makefile.am
+++ b/aegisub/reporter/Makefile.am
@@ -1,5 +1,6 @@
 AUTOMAKE_OPTIONS = foreign
 AM_CXXFLAGS =
+DISTCLEANFILES =
 
 bin_PROGRAMS = reporter-2.2
 
@@ -16,6 +17,7 @@ if PRECOMPILED_HEADER
 # This doesn't depend on Makefile on purpose, you should already know what you're doing when using this.
 r_pre.h.gch: r_pre.h
 	@CXX@ @WX_CPPFLAGS@ @CXXFLAGS@ @DEBUG_FLAGS@ r_pre.h
+DISTCLEANFILES += r_pre.h.gch
 endif
 
 
diff --git a/aegisub/src/Makefile.am b/aegisub/src/Makefile.am
index 27d90c697..3e99c0d01 100644
--- a/aegisub/src/Makefile.am
+++ b/aegisub/src/Makefile.am
@@ -2,6 +2,7 @@ AUTOMAKE_OPTIONS = foreign
 SUFFIXES = .c .cpp .rc
 noinst_LIBRARIES= 
 AM_CXXFLAGS = 
+DISTCLEANFILES =
 
 if BUILD_DARWIN
 libosxutil_subdir = libosxutil
@@ -14,6 +15,7 @@ BUILT_SOURCES = agi_pre.h.gch
 precompiled_header = agi_pre.h
 AM_CXXFLAGS += -Winvalid-pch -fpch-deps -fpch-preprocess -include agi_pre.h
 nodist_aegisub_2_2_SOURCES = agi_pre.h.gch
+DISTCLEANFILES += agi_pre.h.gch
 endif
 
 SUBDIRS = \