diff --git a/Makefile.include b/Makefile.include
index 9d316caeb..1d26ab7ec 100644
--- a/Makefile.include
+++ b/Makefile.include
@@ -59,11 +59,11 @@ $(ASSEMBLY): generated-stamp $(SNK) $(build_sources) $(references)
 install-data-local:
 	@if test -n '$(pkg)'; then							\
 	  echo "$(GACUTIL) -i $(ASSEMBLY) -f $(GACUTIL_FLAGS)";				\
-	  $(GACUTIL) -i $(ASSEMBLY) -f $(GACUTIL_FLAGS) || exit 1;			\
+	  "$(GACUTIL)" -i $(ASSEMBLY) -f $(GACUTIL_FLAGS) || exit 1;			\
 	  if test -n '$(POLICY_VERSIONS)'; then						\
 	    for i in $(POLICY_VERSIONS); do						\
 	      echo "$(GACUTIL) -i policy.$$i.$(ASSEMBLY) -f $(GACUTIL_FLAGS)";		\
-	      $(GACUTIL) -i policy.$$i.$(ASSEMBLY) -f $(GACUTIL_FLAGS) || exit 1;	\
+	      "$(GACUTIL)" -i policy.$$i.$(ASSEMBLY) -f $(GACUTIL_FLAGS) || exit 1;	\
 	    done									\
 	  fi										\
 	fi
@@ -71,11 +71,11 @@ install-data-local:
 uninstall-local:
 	@if test -n '$(pkg)'; then							\
 	  echo "$(GACUTIL) -u $(ASSEMBLY_NAME_VERSION) $(GACUTIL_FLAGS)";		\
-	  $(GACUTIL) -u $(ASSEMBLY_NAME_VERSION) $(GACUTIL_FLAGS) || exit 1;		\
+	  "$(GACUTIL)" -u $(ASSEMBLY_NAME_VERSION) $(GACUTIL_FLAGS) || exit 1;		\
 	  if test -n '$(POLICY_VERSIONS)'; then						\
 	    for i in $(POLICY_VERSIONS); do						\
 	      echo "$(GACUTIL) -u policy.$$i.$(ASSEMBLY_NAME) $(GACUTIL_FLAGS)";	\
-	      $(GACUTIL) -u policy.$$i.$(ASSEMBLY_NAME) $(GACUTIL_FLAGS) || exit 1;	\
+	      "$(GACUTIL)" -u policy.$$i.$(ASSEMBLY_NAME) $(GACUTIL_FLAGS) || exit 1;	\
 	    done									\
 	  fi										\
 	fi
diff --git a/cairo/Makefile.am b/cairo/Makefile.am
index 82eb2314c..826008d93 100644
--- a/cairo/Makefile.am
+++ b/cairo/Makefile.am
@@ -75,13 +75,13 @@ $(ASSEMBLY): $(build_sources) $(SNK)
 install-data-local:
 	@if test -n '$(TARGET)'; then							\
 	  echo "$(GACUTIL) -i $(ASSEMBLY) -f $(GACUTIL_FLAGS)";				\
-	  $(GACUTIL) -i $(ASSEMBLY) -f $(GACUTIL_FLAGS) || exit 1;			\
+	  "$(GACUTIL)" -i $(ASSEMBLY) -f $(GACUTIL_FLAGS) || exit 1;			\
 	fi
 
 uninstall-local:
 	@if test -n '$(TARGET)'; then							\
 	  echo "$(GACUTIL) -u $(ASSEMBLY_NAME_VERSION) $(GACUTIL_FLAGS)";			\
-	  $(GACUTIL) -u $(ASSEMBLY_NAME_VERSION) $(GACUTIL_FLAGS) || exit 1;			\
+	  "$(GACUTIL)" -u $(ASSEMBLY_NAME_VERSION) $(GACUTIL_FLAGS) || exit 1;			\
 	fi
 
 EXTRA_DIST = $(sources) cairo-api.xml mono.snk
diff --git a/glib/Makefile.am b/glib/Makefile.am
index aedada623..1e07b2de8 100644
--- a/glib/Makefile.am
+++ b/glib/Makefile.am
@@ -116,11 +116,11 @@ $(POLICY_ASSEMBLIES) : policy.%.$(ASSEMBLY): policy.%.config $(SNK)
 install-data-local:
 	@if test -n '$(TARGET)'; then							\
 	  echo "$(GACUTIL) -i $(ASSEMBLY) -f $(GACUTIL_FLAGS)";				\
-	  $(GACUTIL) -i $(ASSEMBLY) -f $(GACUTIL_FLAGS) || exit 1;			\
+	  "$(GACUTIL)" -i $(ASSEMBLY) -f $(GACUTIL_FLAGS) || exit 1;			\
 	  if test -n '$(POLICY_VERSIONS)'; then						\
 	    for i in $(POLICY_VERSIONS); do						\
 	      echo "$(GACUTIL) -i policy.$$i.$(ASSEMBLY) -f $(GACUTIL_FLAGS)";		\
-	      $(GACUTIL) -i policy.$$i.$(ASSEMBLY) -f $(GACUTIL_FLAGS) || exit 1;	\
+	      "$(GACUTIL)" -i policy.$$i.$(ASSEMBLY) -f $(GACUTIL_FLAGS) || exit 1;	\
 	    done									\
 	  fi										\
 	fi
@@ -128,11 +128,11 @@ install-data-local:
 uninstall-local:
 	@if test -n '$(TARGET)'; then							\
 	  echo "$(GACUTIL) -u $(ASSEMBLY_NAME_VERSION) $(GACUTIL_FLAGS)";		\
-	  $(GACUTIL) -u $(ASSEMBLY_NAME_VERSION) $(GACUTIL_FLAGS) || exit 1;		\
+	  "$(GACUTIL)" -u $(ASSEMBLY_NAME_VERSION) $(GACUTIL_FLAGS) || exit 1;		\
 	  if test -n '$(POLICY_VERSIONS)'; then						\
 	    for i in $(POLICY_VERSIONS); do						\
 	      echo "$(GACUTIL) -u policy.$$i.$(ASSEMBLY_NAME) $(GACUTIL_FLAGS)";	\
-	      $(GACUTIL) -u policy.$$i.$(ASSEMBLY_NAME) $(GACUTIL_FLAGS) || exit 1;	\
+	      "$(GACUTIL)" -u policy.$$i.$(ASSEMBLY_NAME) $(GACUTIL_FLAGS) || exit 1;	\
 	    done									\
 	  fi										\
 	fi
diff --git a/gtkdotnet/Makefile.am b/gtkdotnet/Makefile.am
index a66098f1b..55b34d6e2 100644
--- a/gtkdotnet/Makefile.am
+++ b/gtkdotnet/Makefile.am
@@ -44,11 +44,11 @@ $(POLICY_ASSEMBLIES) : policy.%.$(ASSEMBLY): policy.%.config $(SNK)
 install-data-local:
 	@if test -n '$(TARGET)'; then							\
 	  echo "$(GACUTIL) -i $(ASSEMBLY) -f $(GACUTIL_FLAGS)";				\
-	  $(GACUTIL) -i $(ASSEMBLY) -f $(GACUTIL_FLAGS) || exit 1;			\
+	  "$(GACUTIL)" -i $(ASSEMBLY) -f $(GACUTIL_FLAGS) || exit 1;			\
 	  if test -n '$(POLICY_VERSIONS)'; then						\
 	    for i in $(POLICY_VERSIONS); do						\
 	      echo "$(GACUTIL) -i policy.$$i.$(ASSEMBLY) -f $(GACUTIL_FLAGS)";		\
-	      $(GACUTIL) -i policy.$$i.$(ASSEMBLY) -f $(GACUTIL_FLAGS) || exit 1;	\
+	      "$(GACUTIL)" -i policy.$$i.$(ASSEMBLY) -f $(GACUTIL_FLAGS) || exit 1;	\
 	    done									\
 	  fi										\
 	fi
@@ -56,11 +56,11 @@ install-data-local:
 uninstall-local:
 	@if test -n '$(TARGET)'; then							\
 	  echo "$(GACUTIL) -u $(ASSEMBLY_NAME_VERSION) $(GACUTIL_FLAGS)";			\
-	  $(GACUTIL) -u $(ASSEMBLY_NAME_VERSION) $(GACUTIL_FLAGS) || exit 1;			\
+	  "$(GACUTIL)" -u $(ASSEMBLY_NAME_VERSION) $(GACUTIL_FLAGS) || exit 1;			\
 	  if test -n '$(POLICY_VERSIONS)'; then						\
 	    for i in $(POLICY_VERSIONS); do						\
 	      echo "$(GACUTIL) -u policy.$$i.$(ASSEMBLY_NAME) $(GACUTIL_FLAGS)";	\
-	      $(GACUTIL) -u policy.$$i.$(ASSEMBLY_NAME) $(GACUTIL_FLAGS) || exit 1;	\
+	      "$(GACUTIL)" -u policy.$$i.$(ASSEMBLY_NAME) $(GACUTIL_FLAGS) || exit 1;	\
 	    done									\
 	  fi										\
 	fi