diff --git a/src/crwimage.cpp b/src/crwimage.cpp
index e7171054..c5ec84f0 100644
--- a/src/crwimage.cpp
+++ b/src/crwimage.cpp
@@ -31,7 +31,7 @@ EXIV2_RCSID("@(#) $Id$")
 
 // Define DEBUG to output debug information to std::cerr, e.g, by calling make
 // like this: make DEFS=-DDEBUG crwimage.o
-//#define DEBUG
+//#define DEBUG 1
 
 // *****************************************************************************
 // included header files
diff --git a/src/pgfimage.cpp b/src/pgfimage.cpp
index da875562..7531ef2a 100644
--- a/src/pgfimage.cpp
+++ b/src/pgfimage.cpp
@@ -31,7 +31,7 @@ EXIV2_RCSID("@(#) $Id$")
 
 // *****************************************************************************
 
-#define DEBUG 1
+//#define DEBUG 1
 
 // *****************************************************************************
 // included header files