diff --git a/runtime/Makefile.am b/runtime/Makefile.am
index d14bf03e2..ca458ab19 100644
--- a/runtime/Makefile.am
+++ b/runtime/Makefile.am
@@ -39,7 +39,7 @@ lib_LIBRARIES = libcsmith.a
 libcsmith_a_SOURCES = \
 	volatile_runtime.c
 
-GIT_HASH := $(shell git show -s --format=%h . 2>/dev/null || echo exported)
+GIT_HASH := $(shell (cd "$(top_srcdir)" && git show -s --format=%h . 2>/dev/null) || echo exported)
 GIT_FLAG = -DGIT_VERSION=\"$(GIT_HASH)\"
 
 ## ENE: The idea of stuffing the target CPU name (a string) into a CPP symbol
diff --git a/runtime/Makefile.in b/runtime/Makefile.in
index b65769c22..23da5414f 100644
--- a/runtime/Makefile.in
+++ b/runtime/Makefile.in
@@ -204,7 +204,7 @@ lib_LIBRARIES = libcsmith.a
 libcsmith_a_SOURCES = \
 	volatile_runtime.c
 
-GIT_HASH := $(shell git show -s --format=%h . 2>/dev/null || echo exported)
+GIT_HASH := $(shell (cd "$(top_srcdir)" && git show -s --format=%h . 2>/dev/null) || echo exported)
 GIT_FLAG = -DGIT_VERSION=\"$(GIT_HASH)\"
 libcsmith_a_CPPFLAGS = \
 	-DTARGET_CPU_$(target_cpu)=1 \
diff --git a/src/Makefile.am b/src/Makefile.am
index 039fcefd6..7f07e2c05 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -191,7 +191,7 @@ EXTRA_DIST = \
 	csmith.vcproj \
 	csmith.vcxproj
 
-GIT_HASH := $(shell git show -s --format=%h . 2>/dev/null || echo exported)
+GIT_HASH := $(shell (cd "$(top_srcdir)" && git show -s --format=%h . 2>/dev/null) || echo exported)
 GIT_FLAG = -DGIT_VERSION=\"$(GIT_HASH)\"
 
 ## ENE: The idea of stuffing the target CPU name (a string) into a CPP symbol
diff --git a/src/Makefile.in b/src/Makefile.in
index 56802e53b..3e691d408 100644
--- a/src/Makefile.in
+++ b/src/Makefile.in
@@ -384,7 +384,7 @@ EXTRA_DIST = \
 	csmith.vcproj \
 	csmith.vcxproj
 
-GIT_HASH := $(shell git show -s --format=%h . 2>/dev/null || echo exported)
+GIT_HASH := $(shell (cd "$(top_srcdir)" && git show -s --format=%h . 2>/dev/null) || echo exported)
 GIT_FLAG = -DGIT_VERSION=\"$(GIT_HASH)\"
 csmith_CPPFLAGS = \
 	-DTARGET_CPU_$(target_cpu)=1 \