diff --git a/src/emu/clifront.c b/src/emu/clifront.c
index 61764f90f42..9499fc88175 100644
--- a/src/emu/clifront.c
+++ b/src/emu/clifront.c
@@ -276,7 +276,7 @@ int cli_frontend::execute(int argc, char **argv)
 
 	_7z_file_cache_clear();
 
-#if MAME_DEBUG
+#ifdef MAME_DEBUG
 	// TODO: this will only be printed when the executable is exited and not when selecting a new set via the internal UI - it needs to be placed somewhere else where it can be printed and reset after each run (check Average Speed location)
 	if (*(m_options.command()) == 0)
 		mame_printf_info("%d tagmap lookups\n", g_tagmap_finds);
diff --git a/src/lib/util/tagmap.c b/src/lib/util/tagmap.c
index cb2bfd9f4de..5a447a49487 100644
--- a/src/lib/util/tagmap.c
+++ b/src/lib/util/tagmap.c
@@ -10,6 +10,6 @@
 
 #include "tagmap.h"
 
-#if MAME_DEBUG
+#ifdef MAME_DEBUG
 INT32 g_tagmap_finds = 0;
 #endif
\ No newline at end of file
diff --git a/src/lib/util/tagmap.h b/src/lib/util/tagmap.h
index 87e4f4185d9..07acdaa26da 100644
--- a/src/lib/util/tagmap.h
+++ b/src/lib/util/tagmap.h
@@ -15,7 +15,7 @@
 
 #include "osdcore.h"
 #include "astring.h"
-#if MAME_DEBUG
+#ifdef MAME_DEBUG
 #include "eminline.h"
 #endif
 
@@ -32,7 +32,7 @@ enum tagmap_error
 };
 
 
-#if MAME_DEBUG
+#ifdef MAME_DEBUG
 extern INT32 g_tagmap_finds;
 #endif
 
@@ -132,7 +132,7 @@ public:
 	// find by tag with precomputed hash
 	_ElementType find(const char *tag, UINT32 fullhash) const
 	{
-#if MAME_DEBUG
+#ifdef MAME_DEBUG
 		atomic_increment32(&g_tagmap_finds);
 #endif
 		for (entry_t *entry = m_table[fullhash % ARRAY_LENGTH(m_table)]; entry != NULL; entry = entry->next())
@@ -144,7 +144,7 @@ public:
 	// find by tag without checking anything but the hash
 	_ElementType find_hash_only(const char *tag) const
 	{
-#if MAME_DEBUG
+#ifdef MAME_DEBUG
 		atomic_increment32(&g_tagmap_finds);
 #endif
 		UINT32 fullhash = hash(tag);