diff --git a/patches/patchinstall.sh b/patches/patchinstall.sh
index bbb05126..920ff121 100755
--- a/patches/patchinstall.sh
+++ b/patches/patchinstall.sh
@@ -310,6 +310,7 @@ patch_enable_all ()
 	enable_opengl32_glDebugMessageCallback="$1"
 	enable_quartz_MediaSeeking_Positions="$1"
 	enable_quartz_Silence_FIXMEs="$1"
+	enable_reg_Tests="$1"
 	enable_riched20_Class_Tests="$1"
 	enable_riched20_IText_Interface="$1"
 	enable_secur32_Zero_Buffer_Length="$1"
@@ -1177,6 +1178,9 @@ patch_enable ()
 		quartz-Silence_FIXMEs)
 			enable_quartz_Silence_FIXMEs="$2"
 			;;
+		reg-Tests)
+			enable_reg_Tests="$2"
+			;;
 		riched20-Class_Tests)
 			enable_riched20_Class_Tests="$2"
 			;;
@@ -6912,6 +6916,18 @@ if test "$enable_quartz_Silence_FIXMEs" -eq 1; then
 	) >> "$patchlist"
 fi
 
+# Patchset reg-Tests
+# |
+# | Modified files:
+# |   *	programs/reg/tests/reg.c
+# |
+if test "$enable_reg_Tests" -eq 1; then
+	patch_apply reg-Tests/0001-reg-tests-Don-t-call-RegCloseKey-on-uninitialized-me.patch
+	(
+		printf '%s\n' '+    { "Sebastian Lackner", "reg/tests: Don'\''t call RegCloseKey on uninitialized memory.", 1 },';
+	) >> "$patchlist"
+fi
+
 # Patchset riched20-Class_Tests
 # |
 # | Modified files:
diff --git a/patches/reg-Tests/0001-reg-tests-Don-t-call-RegCloseKey-on-uninitialized-me.patch b/patches/reg-Tests/0001-reg-tests-Don-t-call-RegCloseKey-on-uninitialized-me.patch
new file mode 100644
index 00000000..bcfc30c3
--- /dev/null
+++ b/patches/reg-Tests/0001-reg-tests-Don-t-call-RegCloseKey-on-uninitialized-me.patch
@@ -0,0 +1,25 @@
+From 0d627c069b85cfcf18429e349b6a4166bd646451 Mon Sep 17 00:00:00 2001
+From: Sebastian Lackner <sebastian@fds-team.de>
+Date: Sun, 9 Jul 2017 15:59:59 +0200
+Subject: reg/tests: Don't call RegCloseKey on uninitialized memory.
+
+---
+ programs/reg/tests/reg.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/programs/reg/tests/reg.c b/programs/reg/tests/reg.c
+index af092908cbc..941d3257c95 100644
+--- a/programs/reg/tests/reg.c
++++ b/programs/reg/tests/reg.c
+@@ -793,7 +793,7 @@ static void test_import(void)
+     DWORD r, dword = 0x123, type, size;
+     char test1_reg[MAX_PATH], test2_reg[MAX_PATH], cmdline[MAX_PATH];
+     char test_string[] = "Test string", buffer[24];
+-    HKEY hkey, subkey;
++    HKEY hkey, subkey = NULL;
+     LONG err;
+     BYTE hex[8];
+ 
+-- 
+2.13.1
+