diff --git a/engines/Makefile b/engines/Makefile
index e0242059b7..2fa9534401 100644
--- a/engines/Makefile
+++ b/engines/Makefile
@@ -114,7 +114,7 @@ install:
 			  if [ "$(PLATFORM)" != "Cygwin" ]; then \
 				case "$(CFLAGS)" in \
 				*DSO_BEOS*)	sfx=".so";;	\
-				*DSO_DLFCN*)	sfx=".so";;	\
+				*DSO_DLFCN*)	sfx=`expr "$(SHLIB_EXT)" : '.*\(\.[a-z][a-z]*\)' \| ".so"`;;	\
 				*DSO_DL*)	sfx=".sl";;	\
 				*DSO_WIN32*)	sfx="eay32.dll"; pfx=;;	\
 				*)		sfx=".bad";;	\
diff --git a/engines/ccgost/Makefile b/engines/ccgost/Makefile
index 64be962f39..dadb5230ec 100644
--- a/engines/ccgost/Makefile
+++ b/engines/ccgost/Makefile
@@ -48,7 +48,7 @@ install:
 		if [ "$(PLATFORM)" != "Cygwin" ]; then \
 			case "$(CFLAGS)" in \
 			*DSO_BEOS*) sfx=".so";; \
-			*DSO_DLFCN*) sfx=".so";; \
+			*DSO_DLFCN*) sfx=`expr "$(SHLIB_EXT)" : '.*\(\.[a-z][a-z]*\)' \| ".so"`;; \
 			*DSO_DL*) sfx=".sl";; \
 			*DSO_WIN32*) sfx="eay32.dll"; pfx=;; \
 			*) sfx=".bad";; \