diff --git a/debugger/gdbproxy.c b/debugger/gdbproxy.c
index 6f29d27c395..0f51f56b71b 100644
--- a/debugger/gdbproxy.c
+++ b/debugger/gdbproxy.c
@@ -2033,7 +2033,7 @@ static BOOL gdb_init_context(struct gdb_context* gdbctx, unsigned flags)
             /* this should be the first event we get,
              * and the only one of this type  */
             assert(gdbctx->process == NULL && de.dwProcessId == DEBUG_CurrPid);
-            //gdbctx->dwProcessId = pid;
+            /*gdbctx->dwProcessId = pid; */
             if (!gdb_startup(gdbctx, &de, flags)) return FALSE;
             assert(!gdbctx->in_trap);
         }
diff --git a/dlls/shlwapi/tests/shreg.c b/dlls/shlwapi/tests/shreg.c
index e7e0a01d1c9..460259d1e99 100644
--- a/dlls/shlwapi/tests/shreg.c
+++ b/dlls/shlwapi/tests/shreg.c
@@ -28,7 +28,7 @@
 #include "winuser.h"
 #include "shlwapi.h"
 
-// Keys used for testing
+/* Keys used for testing */
 #define REG_TEST_KEY        "Software\\Wine\\Test"
 #define REG_CURRENT_VERSION "Software\\Microsoft\\Windows NT\\CurrentVersion"
 
@@ -198,7 +198,7 @@ static void test_SHCopyKey(void)
 {
 	HKEY hKeySrc, hKeyDst;
 
-	// Delete existing destination sub keys
+	/* Delete existing destination sub keys */
 	hKeyDst = (HKEY)0;
 	if (!RegOpenKeyA(HKEY_CURRENT_USER, REG_TEST_KEY "\\CopyDestination", &hKeyDst) && hKeyDst)
 	{